Answer: We constantly should feel joy. This means that I am filled with the spirit of life that comes through the group that constantly keeps me focused on the importance of the goal, that we are special, that we were chosen for this mission, for this great work in order to serve others.
Since it pleases the Creator when we serve others, it is the greatest and most important work for us, and it must be done with joy. Otherwise, you probably are headed in the wrong direction and are not connected to the Light, to the Creator.
You cannot weep and perform the spiritual work simultaneously. You need to focus yourself.
See what King David says in the book of Psalms. He describes great problems that one encounters along the spiritual path, but it all is done with joy. Therefore, these are not just prayers, but a song!
From the St. Petersburg Convention “Day Three” 7/14/13, Lesson 5